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A129148 as a simple table

n a(n)
1 1
2 2
3 8
4 36
5 180
6 956
7 5300
8 30316
9 177604
10 1060284
11 6427092
12 39452364
13 244748196
14 1532044572
15 9664688436
16 61380865452
17 392148430212
18 2518518772604
19 16250624534420
20 105297028489612
21 684865176181348

[1,2,8,36,180,956,5300,30316,177604,1060284,
 6427092,39452364,244748196,1532044572,9664688436,
 61380865452,392148430212,2518518772604,
 16250624534420,105297028489612,684865176181348]

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Last modified May 22 23:18 EDT 2022. Contains 353959 sequences. (Running on oeis4.)